package function.write; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.InputStream; import java.io.OutputStream; import java.util.ArrayList; import java.util.List; import com.alibaba.excel.ExcelReader; import com.alibaba.excel.ExcelWriter; import com.alibaba.excel.event.AnalysisEventListener; import com.alibaba.excel.metadata.Sheet; import com.alibaba.excel.support.ExcelTypeEnum; import function.listener.ExcelListener; import org.apache.poi.ss.usermodel.Cell; import org.apache.poi.ss.usermodel.Row; import org.apache.poi.xssf.streaming.SXSSFSheet; import org.apache.poi.xssf.streaming.SXSSFWorkbook; import org.junit.Test; /** * @author jipengfei * @date 2017/08/15 */ public class ExcelWriteTest1 { @Test public void test(){ OutputStream out = null; try { out = new FileOutputStream("/Users/jipengfei/79.xlsx"); } catch (FileNotFoundException e) { e.printStackTrace(); } try { ExcelWriter writer = new ExcelWriter(out, ExcelTypeEnum.XLSX, false); //写sheet1 数据全是List 无模型映射关系 Sheet sheet1 = new Sheet(1, 0); sheet1.setSheetName("第一个sheet"); List list = new ArrayList(); list.add("1");list.add("2");list.add("3"); List list1 = new ArrayList(); list1.add("1");list1.add("2");list1.add("3"); List> lll = new ArrayList>(); lll.add(list); writer.write0(lll,sheet1); writer.write0(lll,sheet1); writer.finish(); }catch (Exception e){ e.printStackTrace(); } } @Test public void testWriteAndRead(){ OutputStream out = null; try { out = new FileOutputStream("/Users/jipengfei/79.xlsx"); } catch (FileNotFoundException e) { e.printStackTrace(); } try { SXSSFWorkbook wb = new SXSSFWorkbook(10000); SXSSFSheet sheet = wb.createSheet("11111"); Row row = sheet.createRow(0); Cell cell1 = row.createCell(0); cell1.setCellValue("1111"); Cell cell2 = row.createCell(1); cell2.setCellValue("22222"); Cell cell3 = row.createCell(2); cell3.setCellValue("33333"); Row row1 = sheet.createRow(1); Cell cell21 = row1.createCell(0); cell21.setCellValue("444"); Cell cell22 = row1.createCell(1); cell22.setCellValue("555"); Cell cell23 = row1.createCell(2); cell23.setCellValue("666"); wb.write(out); out.close(); InputStream inputStream = new FileInputStream("/Users/jipengfei/79.xlsx"); AnalysisEventListener listener = new ExcelListener(); ExcelReader reader = new ExcelReader(inputStream, ExcelTypeEnum.XLSX, null, listener); reader.read(new Sheet(1)); }catch (Exception e){ e.printStackTrace(); } } private InputStream getInputStream(String fileName) { return Thread.currentThread().getContextClassLoader().getResourceAsStream("" + fileName); } }